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Abstract
This research explores the association between fatigue-induced crash risk, transit operator hours
of service and fatigue management policies in the state of Florida. Data used in this study include
incident data archived by transit agencies and bus driver schedules. The results show a decreasing
trend of collision risks when drivers start their schedules late morning or afternoon compared with
early morning. The effect of time on task shows increasing collision risk as drivers drive long hours
without enough off duty periods.